The rallies counter a large military parade in Washington, D.C., to celebrate the Army’s 250th anniversary and Flag Day.

The Georgia ACLU, Indivisible Georgia and Jewish Voice for Peace Atlanta are among the co-sponsors of the local events. On social media, the group’s motto — “No thrones, no crowns, no kings” — has become a rallying cry for activists resisting what they describe as creeping authoritarianism.